Automatic sheet-retarding device for printing-presses.



No. 832.968. PATENTED 00T. 9, 1906. B. GUSTAFSON.

. AUTOMATIC SHEET RETARDING DEVICE EUR PRINTING PRESSES.

APPLICATION FILED AUG. 11. 1905.

giu/@ratify A- UNiTED 's'rAigijs lee-Ti@,NTE OFFISGE! BERNHARD GusTAFsoN, oF PLAINFIELD, NEW'JERSEY, AssiGNoR ro UNiTEDPRINriNG' -MA-oHiNERY COMPANY. 0F BOSTON, MASSACHU- sE'riS. A coRPoRA'rioN or MAINE.v `Aiiolvmric:'suEE|-Rsma|:uNe. DEVICE Fon Pawnee-PRESSES.

Specicationof Ifetters Patent.

Application-filed August 11, 1905. Serial No. 278.7141.

patentados. e, ieoe.

To all whom it may concern:

Be it known that I, BERNHARD GUSTAF'- soN, of Plainfield, in the county of Union and State of New Jersey, have invented certain new and useful'Im rovements inA Automatic SheetfRetardin evices for Printing- Presses, of 'li' the ollowin'g is a specification.

This invention relates to an. improved automatic sheet-retarding device forprinting- Figure 1 isa side elevation showing a poi'.- tion of the'printinfpressequipped with my improved device. i the arts shown in Fig. 1.1 Fig. 3 isla view simi ar to 1,'showing' the parts in position to be engaged Vby a. moving sheetxoffpaper; Fig.` 4`is a view similar to Fig; \3,

showing the osition of the arts after theirengagement y thev sheet `o paper and the retarding actiono the' device. 5 isa .conventional view showing the relative position 'of the parts of the mac line; A The same numerals of reference indicate the same' arts in all of the 'figures In ig tional manner the feeding-tapes 1, the plate 2, printin -cylinder 3, andone of the guidearms 14o a rinting-press. These parts, as shown, are ol7 ordinary and Well-known construction and require no detailed explanation.

AWhile I have illustrated my improved retarding device as connected -to the guidearr'ns 14, this is for the purpose of illu'stration only, and I do not wish to be understood as limiting myself to such a construction, as thev may be em loyed anywhere Where it is desired `to retar a moving sheet, whether A either side of a disk 12, that is bolted or ot paper or other material. Y

1() 11 represent two arms arranged upon erwiseV secured to the end ofan' arm. 14, a' spring 151, carried by said arm 14, bein' arranged between the arms 10 11, the en s of the arms 10 11 extending beyond the spring 151. To the end of the arm 11 is pivoted a endulum 13, while a complemental pendulum 16- is pivoted to the end of the arm 10. The pendulums 13 and 16 are pivoted near their upper ends and are free to swing on g. 2 is a toppla-nview o f' `raising their rear ends and b 5 I have illustrated in a conventheir respective pivots. Y From the upper end of the pendulum'llprojects'a nger 17, bent rearward andsidewise, as shown, toward the represents a like stop on the arm 10 above i vl; e -6o the upper end 'of pendulum 16. The stopsy 19 and 20, as shownin Figs. 1,'2', en

3, Aare for the'purpose of preventing the pendulums from dropping to a' neutral position andi-maintaining them in a position of stored power. The automatic retrding device.be1ng'positioned either as showninl the or at any'other desired point, as the drawin sheet o paper 40 which it is desired to retard approaches the. pendulums, ordinarily with greatspeed, it engages the pendulums, i nf gers 17 18 against'the paper. The action ofthe -pa er in lifting the pendulums '13 and in; the

su den pressure. of the fingers 17 18is suilicient 'to overcome the vmomentum of the sheet, it being understood, of course, that the pendulums 13 and 16 will be proportioned and' weighted correspondinglto the weight of the sheet or other article t raises their lower ends, as shown in FigA, the result is that the fingers 17 18 are made to vsuddenly engage the paper and press it for a very short period against the plate ortongue 2 or other edV over which the paper is moving, the endulum in the next moment dropving bac on the sheet and leaving the sheet ree to move. The

means for operating t e lingers 17 and 18,;

and while in a sense the pendulum acts to Vretard the momentum of the sheet, et the means relied upon by me for retar ing are the fingers, theybeingstrctly the retarding means, the weight being used as a means for pressing the fingers against the paper.

at is to be used to retard and to the speed of travel. As the' paper engages the pendulums 13 16 and enduluni' serves as In practice thesheets of paper 40 approachY the guides' 15 at .a high rate of speed, and there is a tendency to buckle the sheets at this point against the guide. By my improved automatic retarding devi a this'defect is over- 'ome, the pendulums operating automaticlift the lf'mjer ends o all y to retard theheets and bring them to its vnear a full stopas it is desired just before theyk come in conteetwith the guides 15. As the sheets approach' the pendulums they aree( course nnder the control ofA the tapes or otherV conveymg means, and the latter keep in contaetwth the sheet just long enogh after/the aetlonof the pendulumsl--sl to give the" sheet euchmoton as may bca-necessary to brlnr xt to the guides 15,'but without theshoc that exista where my retarding device is not employed. Ae shown in the drawings,

the pend ulums are arranged at such an angle with the travel of the eheetsas not to deliver too'much of u shock, Fermxtti fr the sheets to depressing thea'r'ms 17 18 against the sheet. .The reterding is efeeted by the sudden endulum arranged to lie'engeged sheet of peper, end means operated by Jia' )endnlum -to engage seid sheet to retandlthegigindependent sheets'of paper, Vn finger nomia ly out of the plane' of the-*travel o f the 4ev sheets; a. ndulum arrangexl'in theplene ofV vthe treve of the sheetsyand connect-,mns be tween 'the pendulum und finger whereby the fi'nge'istl caused to engepife ech sheet byv theH if', l

t: in. i"

contact of the latterw 1 the'pendulumkfff 2; Inepaperffeedn apparatus) means for feeding independent; n eeteof paper, v e pfenpf utter.

3. Ine peper-feedin f'epnarttnslgrneenffe feeding inde 'ndent s eets of .pepenjandn bym movm agement of the arms 17 18 with the sheets automatica! y-fwtin retarding device ai'- z o or a short period, enough space being proranged tobe engag ando rated by @plow 5 vided for the Fendulum to drop beek upon ing sheet of paper to ehec the speedof-rth'e the'sheet and t'the arms 17 18,- thus allewthe sheet'to movefreely eidewise, the pendulums being Athe means by which sueh .cantaet can be eifected without undue shock to the sheetl. vWln`e,l-n the d mwngs e pair lopendulurns is shoe-n, it ist() be noted that :each ctsi-ndependentl y g1" the other. I may employ oneor e plurality e pendnlums, es desu-ed.V y Having' thusexplained thenature of' my inl vention and described awey of constructing f and uei'ng the mg-though without attempting to set forth all of the forms in which vit 35 .may .be 'made or all of' the forms of its n se,'

' E In testimony wheteof l ,fhaye affixedtmy sgnaturein resence of twwtnesses. .y

. NHARDeUsTAFsQN.

` H'LL. RolvimNs,

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